Ok, this is in the interests of leaving no retail stone unturned. Another Canadian fabber kindly pointed out that the Bay was selling a silver jean by a company unknown to me, called Own. They were on sale, so I ordered them to try, just in case I might prefer them to the Zara jeans I showed last week.
They arrived and here is my review These are a nice quality jean. The silver finish is a mid cool tone and feels soft to the touch. These are raw hem and available in multiple lengths. I got the short ones, obviously. ;) They are TTS. They are billed as "mid rise" but much like the Zara jens, they are in fact high rise on me. They are a slim straight verging on skinny -- very similar to the Madewell Stovepipe jean, for those familiar with that cut and style. Also like that jean, they are made of a very stretchy fabric.
However, I tend to like more structure in my jeans and so I prefer the 100% cotton of the Zara version, For that reason, I'm sending these back.
Forgive the lack of styling -- just threw them on to try.
Hope this may be useful to someone. And now I am done with silver jeans for now!